Linux-Misc Digest #689, Volume #25 Thu, 7 Sep 00 09:13:03 EDT
Contents:
PNG Images ("mpierce")
Re: Fail in upgrading glibc RPM package (Fung Wai Keung)
file cluster badly computed ... (Philipp Zambelli)
Re: Need help installing on laptop with network card! (matt venn)
Re: buffer_dirty - what's the @#$%? ("Ian Dichkovsky")
Linux on RS6000 F50 ? (Jim Nik)
regexp on stdin ([EMAIL PROTECTED])
fvwm(2) under RH62 ? ([EMAIL PROTECTED])
Re: Linux on RS6000 F50 ? (Raymond Doetjes)
Re: VirtualHost disables main server!!! (Raymond Doetjes)
Re: Redhat Newbie question (Leonard Evens)
Re: Cluster-Software for Linux (Raymond Doetjes)
Re: fvwm(2) under RH62 ? (LFessen106)
Re: Cluster-Software for Linux (Raymond Doetjes)
Re: Loopback Device Creation (Daniel Robert Franklin)
----------------------------------------------------------------------------
From: "mpierce" <[EMAIL PROTECTED]>
Subject: PNG Images
Date: Thu, 07 Sep 2000 21:31:32 +1000
I'm using Netscape 4.75 and I cannot see *.png images
The media type is being handled by plugger
Can anyone tell me what is wrong!
Marvin
------------------------------
From: Fung Wai Keung <[EMAIL PROTECTED]>
Subject: Re: Fail in upgrading glibc RPM package
Date: 7 Sep 2000 10:30:57 GMT
Hi,
: : I have a problem in copying useful libc into the PC. I only have floppy
: : installed in my PC, no CDROM and any other I/O peripheral device
: : connected. However, floppy is not supported in the rescue mode and no
: Yes, floppy is supported! You booted from it (or are running on a ramfs
: loaded from it) so you know that!
I can't mount my floppy!! Even the file /dev/fd0 doesn't exist. After I
creat it with mknod and mount floppy, I get
bash# mount /mnt/floppy
EXT2-fs: 02:00: couldn't mount because of unsupported optional features.
mount: wrong fs type, bad option, bad superblock on /dev/fd0,
or too many mounted file system.
But, I can find an /dev/fd0 entry in /etc/fstab.
: : /dev/fd0 is created in /dev. How to copy the required files into my PC?
: It probably appears when you need it, if you are using devfs.
What is devfs?
: If not, the answer is: use a different rescue disk or dump it in the dos
: partition using a dos boot disk.
I only have linux partitions.
: Peter
--
Regards,
Wai Keung, Fung
Department of Automation and Computer Aided Engineering,
The Chinese University of Hong Kong,
Shatin, N.T.,
Hong Kong
Tel: (852)26098056 Fax: (852)26036002
Email: [EMAIL PROTECTED]
------------------------------
From: Philipp Zambelli <[EMAIL PROTECTED]>
Subject: file cluster badly computed ...
Date: 07 Sep 2000 12:37:00 +0200
hi,
i have just moved to a 2.2.16 kernel and now i get these
"kernel: file_cluster badly computed!!! 29 <> 30"
messages in /var/log/messages.
although everthing works fine i would like to know the cause of these
messages.
i found a lot of similar postings in several mail and news archives
but no answers. most answers say that it is a problem with vfat file
systems mounted and that it is more a warning than a big problem.
the error is printed in linux/fs/fat/misc.c:
========================= snipsnip =========================
if (file_cluster != inode->i_blocks/cluster_size){
printk ("file_cluster badly computed!!! %d <> %ld\n"
,file_cluster,inode->i_blocks/cluster_size);
}else{
fat_cache_add(inode,file_cluster,nr);
========================= snipsnip =========================
IMHO the fat cache will not be used ...
is there solution/work around/patch available?
could u please help me?
TIA
regards
philipp
--
Philipp Zambelli <pzamb at iicm dot edu>
------------------------------
From: [EMAIL PROTECTED] (matt venn)
Crossposted-To: comp.os.linux.help,linux.redhat.install,linux.redhat.misc
Subject: Re: Need help installing on laptop with network card!
Date: Thu, 07 Sep 2000 10:50:08 GMT
have you read the laptop howto?
im pretty sure it gives info on installing on really pants laptops.
matt
------------------------------
From: "Ian Dichkovsky" <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.development.system,comp.os.linux.hardware,comp.os.linux.questions
Subject: Re: buffer_dirty - what's the @#$%?
Date: Thu, 7 Sep 2000 14:07:54 +0300
> > So, what it mean - buffer_dirty ?
>
> Caching. It happens in Windows if you speed Windows up (but Windows
> defaults to turn off write caching). When you write a file to floppy all
I copy file _FROM_ floppy to hard
mount /mnt/fd; cp /mnt/fd/* /prj; umount /mnt/fd
Bye!
------------------------------
From: [EMAIL PROTECTED] (Jim Nik)
Subject: Linux on RS6000 F50 ?
Date: Thu, 07 Sep 2000 11:21:56 GMT
I am new to Linux and want to install it on a machine that is sitting
idle at work. It is a IBM RS6000 F50 with AIX on it.
Has anyone installed linux on this hardware ?. Which distribution
should I go for - Suse, Redhat ?, any others ? I am confused. I want
to use the machine as an intranet server running Apache.
Please email response.
regards
jim
email:[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED]
Subject: regexp on stdin
Date: Thu, 07 Sep 2000 11:19:41 GMT
I want to match piped lines from stdin against a
regular expression. As far as I know I can't use
expr, because the two arguments must be provided
as string and you can't use a hyphen as
substitute for stdin...
Does anybody know a workaround for this?
regards
Marek
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: [EMAIL PROTECTED]
Subject: fvwm(2) under RH62 ?
Date: 7 Sep 2000 11:39:37 GMT
Hi,
I've recently installed RedHat6.2, selecting the Gnome option.
Since gnome is very M$cartoony-slow, compared to my old Slakware
running fvwm, I want to try a lighter window manager.
RH62 has got fvwm2, which is apparently just a bit
bigger than my old version (running in Slakware), altho the
2 different fvwm*rc scripts are completly different !
Setting up X is a pain !!
Tracing Slakware's startx script's output, I see that it
finally 'does': xinit $clientargs -- $serverargs
where $clientargs == <a path>/xinitrc
and $serverargs == <empty string>
But a failed to trace how this eventually uses the window manager
specified in /var/X11R6/lib/xinit/xinitrc
Under Slakware I was able to test several window managers by
renaming the relevant win-mang-script to xinitrc.
I'd like to know how startx 'links-thru' to this script.
How do I setup RH62 to select its fnwm2 rather than gnome ?
Any answers\advice please also emailed to [EMAIL PROTECTED]
in case I miss the NwsGroup.
Thanks, Chris Glur.
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: Linux on RS6000 F50 ?
Date: Thu, 07 Sep 2000 14:38:14 +0200
I personally would suggest SuSE since they have a massive
cooperation with IBM on this development and the development of Linux on
OS/390.
Personaly I would'nt use Linux on RS6000. I would go for AIX and
Netscape FastTrack server.
AIX is 100% tuned to the PowerPC CPU unlike Linux that is compiled with
the gcc. GCC is pretty optimized for ix86 but not for other platforms. I
found that out with the Alpha.
I used Linux on Alpha and switched to Tru64 (which also happens to be
the fastest Unix on 64bit platform also due to the currency of the Alpha
Processor and memorybus chipset) but the performance difference was
massive! About 50 to 70%.
Raymond
Jim Nik wrote:
> I am new to Linux and want to install it on a machine that is sitting
> idle at work. It is a IBM RS6000 F50 with AIX on it.
>
> Has anyone installed linux on this hardware ?. Which distribution
> should I go for - Suse, Redhat ?, any others ? I am confused. I want
> to use the machine as an intranet server running Apache.
>
> Please email response.
>
> regards
> jim
>
> email:[EMAIL PROTECTED]
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,comp.os.linux.setup
Subject: Re: VirtualHost disables main server!!!
Date: Thu, 07 Sep 2000 14:41:37 +0200
It should be name ipaddress portnumber
and then every side that you host also your so called mainside should have a
VirtualHost directive.
It is a bit confugsing but also pretty logical once that you know that
VirtualHosts enables a different way of hadneling calls. It sees a domainname
and it will look for the right documentroot for that domainname, this also
happens ofcourse for his standard domain.
Raymond
Percy Cheng wrote:
> Hi Devon,
>
> It should be a problem if attempt the naming host to domain name,
> try to use ip, dhcp can assign a fix ip to specific host too.
>
> Devon Harding <[EMAIL PROTECTED]> wrote in message
> news:tVCt5.10405$[EMAIL PROTECTED]...
> > When I enable VirtualHost in httpd.conf, request to the main site is being
> > redirected to the VirtualHost site. I have to create another VirtualHost
> > for the main site. Take a look at my httpd.conf:
> >
> > Note: I have to use dns name for NameVirtualHost because the adapter on
> that
> > ip is obtained by dhcp
> >
> > ### Section 3: Virtual Hosts
> > #
> > # VirtualHost: If you want to maintain multiple domains/hostnames on your
> > # machine you can setup VirtualHost containers for them.
> > # Please see the documentation at <URL:http://www.apache.org/docs/vhosts/>
> > # for further details before you try to setup virtual hosts.
> > # You may use the command line option '-S' to verify your virtual host
> > # configuration.
> >
> > #
> > # If you want to use name-based virtual hosts you need to define at
> > # least one IP address (and port number) for them.
> > #
> > #NameVirtualHost 12.34.56.78:80
> > NameVirtualHost venus.domain.com
> >
> > #
> > # VirtualHost example:
> > # Almost any Apache directive may go into a VirtualHost container.
> > #
> > #<VirtualHost ip.address.of.host.some_domain.com>
> > # ServerAdmin [EMAIL PROTECTED]
> > # DocumentRoot /www/docs/host.some_domain.com
> > # ServerName host.some_domain.com
> > # ErrorLog logs/host.some_domain.com-error_log
> > # CustomLog logs/host.some_domain.com-access_log common
> > #</VirtualHost>
> >
> > <VirtualHost _default_:*>
> > </VirtualHost>
> >
> > <VirtualHost venus.domain.com>
> > ServerAdmin [EMAIL PROTECTED]
> > ServerName siresol.domain.com
> > DocumentRoot /www/docs/siresol.domain.com
> > ErrorLog logs/siresol.domain.com-error_log
> > CustomLog logs/siresol.domain.com-access_log common
> > </VirtualHost>
> >
> > <VirtualHost venus.onedesigns.com>
> > ServerAdmin [email protected]
> > ServerName www.domain.com
> > DocumentRoot /home/httpd/html
> > </VirtualHost>
> >
> >
------------------------------
From: Leonard Evens <[EMAIL PROTECTED]>
Subject: Re: Redhat Newbie question
Date: Thu, 07 Sep 2000 06:28:49 -0500
[EMAIL PROTECTED] wrote:
>
> I just tried to install Redhat 6.2 on my HP3390 Laptop. The Video driver
> is in the selections and then I set up my dual boot hdd. Install went
> o-k until it finished. I then seen a message of many errors, Which
> follow,, traceback (innermost last ): file /usr/bin/anaconda/line342
> in?/intf.run (todo,test=test) file /ussr/bin/anaconda/text.py line 1165
> in run rc=apply (step [1] (),step2 file /usr/lib/anaconda/text.py
> line 702 in_call ifto do.doinstall file /usr/lib/anaconda/todo.py
> line 1251 indoinstall self.fstab.write (self.inst.path) I can
> stuff a boot disk in and boot up and I get an error message of Unable
> to open inital console. Kernel panic no init found try passing init -
> option to kernel and locks up solid.. I can put the CD in and go to
> RESCUE and go to the bash prompt but I don't know what to do here?? I
> think its a problem with the anaconda file ??? I have Win ME on the
> first 1/2 of the HDD and it works fine. Upon boot up it jumps straight
> to WIN so LILO is not on the MBR. I stuffed in the CD and went to
> /usr/bin and tried to do "anaconda --reconfig" and received an error
> of Traceback (innermost last ) file /usr/bin/anaconda line 198 in? if
> (iutil.getDefaultRunlevel () == 4 and file /usr/lib/andconds/iutil.py
> line 182 in getDefaultRunlevel Inittab - open (etc/inittab , r
> IIOError: Errno 2 no such file or dir: /etc/inittab In the /etc there
> are only 7 files instead of the many thats in the /etc on my desktop??
> If anyone has any idea,, I would appreciate any help. Thanks
> David
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
I would guess something went wrong with the installation, either
because of a transitory glitch in the installation or because
there is something wrong with the CD you are using. You might
try doing it over again if you can or trying it with another
CD.
--
Leonard Evens [EMAIL PROTECTED] 847-491-5537
Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking
Subject: Re: Cluster-Software for Linux
Date: Thu, 07 Sep 2000 14:50:46 +0200
A CFS is necesarry for those file servers serving files.
Because you'd like to loadbalance them also and have instant failover and not a
failoverd that needs to restart a server and mount a shared storage device.
Cluster did'nt startout as parallel computation. It started out as creating more
performance and more reliability. Digitals VMS is the first real cluster inventor. A
job was send to a clusternode, that node seeked the least loaded node to start
computing that job. (when jobs were parallel your performance gain was better,
ofcourse), a very x seconds a proccess memory dump was send to other nodes incase
that server went down the other cluster node started of were the last process
snapshot was left behind.
When the server got to loaded or decided that the process needs more memory that he
has available he can
migrate that job to a other node with more memory.
That was the true definition of a Clustering operating system.
Much later people came with relativly easy "clusters" PVM's
and the easiest which I don't count as a cluster but a failover is hot standby
failover.
My first question is always what is it that you would like to accomplish with a
cluster. Since there
are many different cluster technologies these days. But non as good as the Digital
Cluster or the Irix cluster solution that is simular.
Raymond
Marius Aamodt Eriksen wrote:
> In article <[EMAIL PROTECTED]>, Raymond Doetjes wrote:
> >Beowulf is not the answer, beowulf is a PVM parallel virtual machine just for
> >number crunching. There is no Clustering File System that would be reliable
> >enough for a RDBMS. They probably want 2 nodes working simultaniously to also do
> >loadsharing.
>
> Beowulf != PVM, you can also use MPI. When I think cluster, I think parallel
> computing. If not, it's basically a load balancer. You don't need a
> 'clustering file system'; with proper adaption, something like NFS or AFS can
> be used, or even SAMBA.
>
> Marius.
>
> --
> Marius Aamodt Eriksen
> : [EMAIL PROTECTED]
> : [EMAIL PROTECTED]
> : [EMAIL PROTECTED]
> : [EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (LFessen106)
Subject: Re: fvwm(2) under RH62 ?
Date: 07 Sep 2000 11:58:24 GMT
>How do I setup RH62 to select its fnwm2 rather than gnome ?
>
>Any answers\advice please also emailed to [EMAIL PROTECTED]
>in case I miss the NwsGroup.
Run the program called switchdesk. Afterwards, you can edit the file in your
home directory called .Xclients-default to change your wm.
Another solution that works occasionally is to just create your own .xinitrc
file in your home directory.
-Linc.
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: Cluster-Software for Linux
Date: Thu, 07 Sep 2000 15:05:48 +0200
Hoi hoi,
The Mosix cluster is yet another cluster implementation bringing a extra
feature that BeoWulf does'nt have.
And that is that it is more like a authentic Digital Cluster. It does process
migration so you get reliability, unlike BeoWulf that is just a PVM.
My first reaction of a person that wants a cluster is to ask what they want to
accomplish.
Like I wrote earlier in this thread there are 3 major differnt clusters.
The first to build a cluster-solution was Digital on VMS they defined that it
should increase:
- performance because you have more systems (which was'nt the major objective)
- it should create a real 24x7x365 availability
- Every server should be able to share the resources from the others and that
is why a Clustering File System is needed. They are all writing on the same
data, so a smart locking scheme is needed. They all
have a shared memory bus to be able to migrate process data fast to a other
node.
With BeoWulf you aren't able to increase the performance of a webserver which
should be possible
in the very near future with Mosix that will be possible due to the shared
network sockets that they are building. Mosix can for gain performance for
non-parrellel software unlike BeoWulf. So you can't just say that BeoWulf
performance better. Since it is completly different. And PVM is relativly easy
compared to a fork and forget that also increase reliablity due to process
migration.
Raymond
Axel Scheepers wrote:
> ----- Original Message -----
> From: Jean-David Beyer-valinux <[EMAIL PROTECTED]>
> Newsgroups: comp.os.linux.misc
> Sent: Tuesday, September 05, 2000 12:24 PM
> Subject: Re: Cluster-Software for Linux
>
> > Marius Aamodt Eriksen wrote:
> >
> > > In article <[EMAIL PROTECTED]>, Raymond Doetjes wrote:
> > > >Beowulf is not the answer, beowulf is a PVM parallel virtual machine
> just for
> > > >number crunching. There is no Clustering File System that would be
> reliable
> > > >enough for a RDBMS. They probably want 2 nodes working simultaniously
> to also do
> > > >loadsharing.
> > >
> > > Beowulf != PVM, you can also use MPI. When I think cluster, I think
> parallel
> > > computing. If not, it's basically a load balancer. You don't need a
> > > 'clustering file system'; with proper adaption, something like NFS or
> AFS can
> > > be used, or even SAMBA.
> > >
> > > Marius.
> > >
> > > --
> > > Marius Aamodt Eriksen
> > > : [EMAIL PROTECTED]
> > > : [EMAIL PROTECTED]
> > > : [EMAIL PROTECTED]
> > > : [EMAIL PROTECTED]
> >
> > I do not know all that much about Beowulf, but it seems to me that you
> better use
> > the clustering facilities of the DBMS you are running. Otherwise it will
> be
> > difficult to be sure that the commits really work, that the system logs
> and backups
> > are done properly, and so on. Furthermore, data distribution and query
> optimizations
> > may not work correctly if the dbms thinks it is running everything on one
> machine
> > when you have actually distributed it around unknown to it.
> >
> > --
> > .~. Jean-David Beyer Registered Linux User 85642.
> > /V\ Registered Machine 73926.
> > /( )\ Shrewsbury, New Jersey
> > ^^-^^ 6:18am up 27 days, 13:46, 3 users, load average: 1.11, 1.16, 1.20
> >
> >
> >
> I have some experience using BeoWulf and i can tell you it runs like hell!
> I wrote a simple parallel processing program in c (excellent documentation!)
> to test it and it really rocks!
> I used 4 nodes with a total 2 Ghz and 264 MB memory ( it's just a hobby....)
> and i tried to program a parallel mpeg2 encoder, that failed because of a
> lack of free time :-(( You can simply use NFS as Marius said, it works fine,
> if you;re programming skills are not well enough to modify the sourece or if
> it has no support for beowulf or clustering the MOSIX project might interest
> you. I ran that in combination with Beowulf but it's performance wasn't THAT
> good but that's probably because i use only 5 nodes and it might scale
> bad....
> Greetz,
> Axel Scheepers
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
------------------------------
Crossposted-To: aus.computers.linux
Subject: Re: Loopback Device Creation
From: [EMAIL PROTECTED] (Daniel Robert Franklin)
Date: 7 Sep 2000 22:25:29 +1100
"Peter T. Breuer" <[EMAIL PROTECTED]> writes:
>Jim Bell <[EMAIL PROTECTED]> wrote:
>: so I presume the kernal doesn't know or like my new device. I have
>: rebooted since creating the device (not necessary, but Windows habits
>: die hard!). Any suggestions would be appreciated.
>Modify the kernel driver. There is no other way.
Yes there is. Modifying the driver is a hack. The right ways is via a boot
or module option. See my other post for details.
- Daniel
--
******************************************************************************
* Daniel Franklin - Postgraduate student in Electrical Engineering
* University of Wollongong, NSW, Australia * [EMAIL PROTECTED]
******************************************************************************
------------------------------
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End of Linux-Misc Digest
******************************
